Single use pouring spout and combination

Abstract

A one piece pouring spout is inserted within a preformed can opening and fully seated for sealing against leakage and pilfering. In use, the spout is raised, to extended pouring position and rigidly retained within the can opening. The elongated tubular spout is integrally molded of synthetic plastic having its upper end closed off with a removeable sealing diaphragm and surrounded with a finger gripping ring. Upper and lower sealing surfaces are formed on the spout exterior to tightly engage the can opening in fully seated respective raised and lowered positions.

I claim: 
     
       1. A one-piece pull-up pouring spout integrally molded of synthetic plastic material for displacement between a lowered container sealing position and raised pouring position comprising an elongated tubular body having a smooth interior surface free of internal projections, said spout having a closed upper end portion and an open lower end portion, a first selfsupported sealing surface disposed about the upper end portion of said spout tubular body dimensioned for tight sealing engagement within a container wall opening with said spout in lowered sealing position whereby said one-piece spout acts as the sole means for closing off the container wall opening, a second sealing surface disposed about the lower end portion of said spout for sealing engagement within a container wall opening with said spout in raised pouring position, and gripping means integrally connected to said spout for pulling said spout from said lowered sealing engagement and raising said spout from a lowered container sealing position to an extended position. 
     
     
       2. A one-piece pull-up pouring spout integrally molded of synthetic plastic material for displacement between a lowered container sealing position and a raised pouring position comprising an elongated tubular body having a smooth interior surface free of internal projections, said spout having a closed upper end portion and an open lower end portion, a first self-supported sealing surface disposed about the upper end portion of said spout dimensioned for tight sealing engagement within a container wall opening with said spout in lowered sealing position whereby said one-piece spout acts as the sole means for closing off the container wall opening, a second sealing surface disposed about the lower end portion of said spout for sealing engagement within a container wall opening with said spout in raised pouring position, gripping means integrally connected to said spout for raising said spout from a lowered container sealing position to an extended position and pilfer indicating means interconnecting said gripping means and said spout body. 
     
     
       3. A pull-up pouring spout as in claim 1 including a severable zone at the upper end portion of said spout. 
     
     
       4. A pull-up pouring spout as in claim 3 wherein said gripping means is connected to said spout at a position vertically below said severable zone. 
     
     
       5. A pull-up pouring spout as in claim 3 and means formed within said severable zone for reception of a puncturing implement. 
     
     
       6. In combination, a container having a spout receiving opening therein surrounded by a supporting neck, a one-piece pull-up pouring spout integrally molded of synthetic plastic material for displacement between a lowered container sealing position and raised pouring position comprising an elongated tubular body having a closed upper end portion and an open lower end portion, a first self-supported sealing surface disposed about the upper end portion of said spout tubular body dimensioned for tight sealing engagement within said container wall opening neck with said spout in lowered sealing position whereby said spout acts as the sole means for closing off said opening, a second sealing surface disposed about the lower end portion of said spout for sealing engagement within said container wall opening neck with said spout in raised pouring position, and gripping means integrally connected to said spout for pulling said spout from said lowered sealing engagement and raising said spout from a lowered container sealing position to an extended pouring position. 
     
     
       7. A combination as in claim 6 wherein said supporting neck has a sharply radiused surface in contact with said spout.